Contact Us
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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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WhatsApp: 8618822802390
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Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
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15
Nov
2016
The working principle of combustible gas detector
For combustible gas detectors to detect combustible gas information, the detector must communicate with the detection environment. Therefore, it is inevitable that various pollutin
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20
Oct
2016
Substances that can be detected by the combustible gas detector
Substance and Minimum detection concentration: Acetylene 50ppm Propane 500ppm Ethylene Chloride 5ppm Isobutane 500ppm Ethylene 500ppm Methyl Chloride 5ppm Methane 500ppm Hydroge
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15
Oct
2016
Application range of combuistble gas detector
1.Ocean operation platform and drilling platform 2.Oil refinery 3.Petrochemical plant 4.Comp
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08
Oct
2016
what is Combustible gas detector?
The combustible gas detector is a combustible gas detector that responds to the concentration of single or multiple combustible gases. There are two types of combustible gas detect
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15
Feb
2022
Daily maintenance of laser rangefinder
Problems that need to be paid attention to when using the laser rangefinder: The laser rangefinder cannot be directly measured at the human eye to prevent damage to the human body.
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13
Feb
2022
Precautions for the use of hand-held laser rangefinders
DISTO and other hand-held laser rangefinders use lasers for distance measurement, and the pulsed laser beam is a monochromatic light source with very concentrated energy, so do not
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11
Feb
2022
The purchase of laser rangefinder
And when the accuracy requirement is not high. Recommendation - "Ultrasonic rangefinder" can be used.
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09
Feb
2022
Uses of laser rangefinders
Laser rangefinders are widely used in terrain surveying, battlefield surveying, ranging of tanks, aircraft, ships and artillery to targets, and measuring the height of clouds, airc
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07
Feb
2022
Classification of laser rangefinders
Laser rangefinders are divided into handheld laser rangefinders and telescope-type laser rangefinders.
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05
Feb
2022
The principle of laser rangefinder
The principle of ranging can basically be attributed to measuring the time required for the light to travel to and from the target, and then calculate the distance D through the sp
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03
Feb
2022
Introduction to Laser Rangefinders
A laser rangefinder is an instrument that uses a certain parameter of the modulated laser to accurately measure the distance to the target. The pulsed laser rangefinder shoots a be
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02
Feb
2022
What is a laser rangefinder
The laser rangefinder is an instrument that uses a certain parameter of the modulated laser to measure the distance to the target. The measuring range of the laser rangefinder is 3
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31
Jan
2022
Digital multimeter purchase requirements
A digital multimeter is the most basic test tool for electronics enthusiasts. A good digital multimeter can not only measure various electrical parameters, but also a right-hand ma
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28
Jan
2022
Digital Multimeter Repair Tips
For a faulty instrument, first check and determine whether the fault phenomenon is common (all functions cannot be measured) or individual (individual functions or individual range
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25
Jan
2022
Product Repair of Digital Multimeters
Digital multimeters have high sensitivity and accuracy and are used in almost all businesses. However, due to the fact that there are many factors in its failure, and the randomnes
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22
Jan
2021
Product maintenance of digital multimeter
The digital multimeter is a precision electronic instrument, do not change the circuit at will, and pay attention to the following points: ⒈ Do not connect to a DC voltage higher t
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19
Jan
2022
Precautions for digital multimeters
In order to avoid electric shock and personal injury, please read the "Safety Information" and "Warnings and Cautions" in the manual before use. The following s
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16
Jan
2022
Digital Multimeter Measurement Tips
Use the R×1Ω gear, connect any test pen to one end, and the other test pen touches the other end. Normally, a crisp and loud "click" sound will be emitted. If there is no sound, th
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14
Jan
2022
Instructions for use of digital multimeter
The instrument is equipped with an automatic power cut-off circuit. When the working time of the instrument is about 30 minutes to 1 hour, the power supply is automatically cut off
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11
Jan
2022
Triode measurement of digital multimeter
The insertion of the test leads is the same as above; the principle is the same as that of the diode. Assume that pin A is the base, connect it with the black pen, and the red pen
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